Pneumatic fixed ball valve - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Pneumatic fixed ball valve

  • [Valve model]: Q647F，Q647H
  • [Diameter specification]: DN50～DN500
  • [Structure]: Two piece cast valve body
  • [Valve body material]: Cast steel (WCB), stainless steel (304, 316, 316L)
  • [Nominal pressure]: PN16、25、40、64bar
  • [Applicable temperature]: -40℃ - 425℃
  • [Application Scope]: Petrochemical, gas equipment, electric equipment, environmental protection water treatment
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  • Pneumatic fixed ball valve

Product features

The pneumatic fixed ball valve is generally connected by flange, and the ball is fixed. It adopts the design of upper and lower valve stem fixed valve core (shaft support type) and movable seal seat. When it is closed, under the action of medium pressure, the ball will not produce displacement, and the cultivation is more stable. It is commonly used on various high-pressure and large-diameter pipelines. The pneumatic fixed ball valve is usually connected with the ball on the upper and lower shafts, and is equipped with rolling bearings or sliding bearings to reduce the friction of the journal when opening and closing, and reduce the operating torque. It is widely used in various industries.
Pneumatic fixed ball valve application:
 
Most of the pneumatic flanged fixed ball valves are connected by flanges, which are suitable for long-distance transmission pipelines and general industrial pipelines. Their strength, safety, and resistance to harsh environments have been specially considered in the design. They are used to cut off or connect the medium in the pipeline. Different materials are selected, which can be applied to water, steam, oil, liquefied gas, natural gas, gas, nitric acid, acetic acid Oxidative media, urea and other media are widely used in petrochemical, electric power and water conservancy industries.

technical parameter

Nominal diameter DN15～DN200(mm)
Nominal pressure PN1.6、2.5、4.0、6.4MPa
Connection type Flange type
structural style Two piece cast valve body
Drive mode Air source control (4-7bar compressed air)
Service temperature -40℃～425℃
Control form Switch type (switch two position control), regulating type (4~20mA signal)
body material carbon steel WCB, stainless steel 304, 316, 316L
sealing material PTFE, PPL, metal seal (hard alloy)

Optional functions of pneumatic fixed ball valve:
Drive mode Compressed air (with handwheel)
Air supply pressure 0.4-0.7mpa
air connection G1/4"、G1/8"、G3/8"、G1/2"
ambient temperature -30～+70℃
Form of action
Single action (spring return): air close type (B) - valve position open (FO) in case of air loss; Air to open type (K) -- valve position closed in case of loss of air (FC)
Double action (ventilation switch): air close type (B) - valve remains unchanged in case of loss of air (FL); Air to open type (K) -- valve remains unchanged in case of loss of air (FL)
Optional Accessories Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc

Quotation process

Valve price:

Due to the different requirements of order quantity, packaging and delivery method, and the fluctuation of the price of valve raw materials, the price of valves will have a big difference immediately, so our products have not been marked with prices on the website, please understand.

If you select a valve product on this website and need to know the price or obtain relevant technical information, please contact us. We will reply immediately, and can select appropriate valve products for you according to your requirements, so that your procurement process is easy and pleasant.

Quotation process:

1. Please fax the name (or product model) of the valve you selected, the required order quantity, packaging requirements, delivery time, your company name, your company location and contact information to 021-36311208 Or telephone: 021-60547555。

2. After receiving the customer's purchase list, our company will provide the customer with various services such as valve quotation "price list", model selection "valve model" and technical guidance as soon as possible.

3. Specific matters: delivery date, special requirements, etc.

Ordering Instructions

1、 If the customer has special requirements for the product, the following instructions must be provided in the order contract:
(1) Valve body material (such as plastic, cast steel, stainless steel...)
(2) Connection type (such as flange, thread, clamp, etc.)
(3) Nominal diameter, pipe size
(4) Ambient temperature and pressure range
(5) Power supply voltage, air supply pressure
(6) Fluid properties (including nominal pressure, temperature, viscosity or acid-base)
2、 The company configures various driving devices according to the special requirements of customers. (electric control, pneumatic control)
3、 If the customer provides the determined valve type and model, the customer should correctly explain the meaning and requirements of the model (see the description of valve model preparation for details), and sign the contract on the condition that both the supplier and the buyer have the same understanding.
4、 After the customer tells the required valve model, specification, quantity, delivery time and place, the deposit of 20% of the total amount or the full payment for goods shall be remitted to our company's account in time, and the rest of the payment for goods shall be remitted before shipment, so as to arrange shipment in time.
5、 After the purchase is confirmed, our company will produce in strict accordance with the delivery date. The product processing cycle is generally 3 to 30 days, depending on the type and quantity of the order, and the specific delivery time is subject to the contract. In order to ensure that the goods you ordered are in place in time, please try your best to order earlier.
6、 Our company provides network distribution services according to the needs of customers, delivering goods to the branches (offices) of customers in major cities, and implementing door-to-door delivery services. After the products are accepted, our company will provide after-sales service.